Saturday, 2 December 2017

Mechanical connectors for flexible PCBs?


Does anyone have a good solution for a mechanical connector for flexible printed PCB, like those used for strips of common-cathode RGB LEDs?



alt text


(You can cut the strip across any of the solder pads and scrape back the silicon insulation)


"Just solder" isn't the answer I want to hear (neither is "get better at soldering") as a) I need to do lots of these joins which need to be b) mechanically sound and ideally c) field-repairable, in quite a tough field (on the playa at Burning Man.) The joints need to be mechanically sound as I plan to sew about 30 x 50cm strips into a garment.


Ideally I'd like some kind of screw-terminal. But I don't know what to ask for and can't find one on my own.


Another idea I've come up with is taking 90° header pins and pushing/piercing/drilling little holes for them through the printed track and soldering those in (a much easier task—I've found component-through-hole soldering orders of magnitude easier than wire-to-pad soldering; tracks lift and it's hard to get everything to bloody stay still.) Anyone think this might work and/or tried it?



Answer



How thick is the flexible PCB that you are using? Could you put a flat flex connector on your board and design your flexible pcb to socket into it?


Hmm... As I type this I wonder if this will actually work. I would be interested in what someone who has used flex pcb has to say.


No comments:

Post a Comment

arduino - Can I use TI's cc2541 BLE as micro controller to perform operations/ processing instead of ATmega328P AU to save cost?

I am using arduino pro mini (which contains Atmega328p AU ) along with cc2541(HM-10) to process and transfer data over BLE to smartphone. I...